Is anyone 100% sure that executing the 4,1 to 5,1 Firmware Update won't adversely effect ANYTHING regarding the 4,1 hardware once the firmware is implemented?
I currently run a 4,1 Mac Pro 8-Core / duo 2.26MHz with 48GB mem (Tri-Channel configured) with a vB07 Boot. This machine presently runs Snow Leopard and will be configured to run a fresh install of El Capitan in a few shorts weeks.
I do not plan on updating anything hardware related (aside from maybe graphics in the distant future)...
TO DO or NOT TO DO 4,1 to 5,1 Firmware Update
I currently run a 4,1 Mac Pro 8-Core / duo 2.26MHz with 48GB mem (Tri-Channel configured) with a vB07 Boot. This machine presently runs Snow Leopard and will be configured to run a fresh install of El Capitan in a few shorts weeks.
I do not plan on updating anything hardware related (aside from maybe graphics in the distant future)...
TO DO or NOT TO DO 4,1 to 5,1 Firmware Update